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| author | Will Deacon <will.deacon@arm.com> | 2010-11-13 18:45:27 +0000 |
|---|---|---|
| committer | Will Deacon <will.deacon@arm.com> | 2010-11-25 16:52:08 +0000 |
| commit | 629948310e4270e9b32c37b4a65a8cd5d6ebf38a (patch) | |
| tree | f1b8d4d2239e43f52e3d48cddd86990ec1771504 /arch | |
| parent | 3cb314bae2191b432a7e898abf865db880f6d07d (diff) | |
| download | linux-stable-629948310e4270e9b32c37b4a65a8cd5d6ebf38a.tar.gz linux-stable-629948310e4270e9b32c37b4a65a8cd5d6ebf38a.tar.bz2 linux-stable-629948310e4270e9b32c37b4a65a8cd5d6ebf38a.zip | |
ARM: perf: encode PMU name in arm_pmu structure
Currently, perf uses the PMU ID as an index into a string table
to look up the name of a given PMU.
This patch encodes the name of a PMU directly into the arm_pmu
structure so that PMU-specific code can be factored out into
separate files.
Acked-by: Jamie Iles <jamie@jamieiles.com>
Acked-by: Jean Pihet <j-pihet@ti.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/kernel/perf_event.c | 19 |
1 files changed, 8 insertions, 11 deletions
diff --git a/arch/arm/kernel/perf_event.c b/arch/arm/kernel/perf_event.c index acc4e91dd300..ac4e9a1ed80b 100644 --- a/arch/arm/kernel/perf_event.c +++ b/arch/arm/kernel/perf_event.c @@ -69,18 +69,9 @@ struct cpu_hw_events { }; DEFINE_PER_CPU(struct cpu_hw_events, cpu_hw_events); -/* PMU names. */ -static const char *arm_pmu_names[] = { - [ARM_PERF_PMU_ID_XSCALE1] = "xscale1", - [ARM_PERF_PMU_ID_XSCALE2] = "xscale2", - [ARM_PERF_PMU_ID_V6] = "v6", - [ARM_PERF_PMU_ID_V6MP] = "v6mpcore", - [ARM_PERF_PMU_ID_CA8] = "ARMv7 Cortex-A8", - [ARM_PERF_PMU_ID_CA9] = "ARMv7 Cortex-A9", -}; - struct arm_pmu { enum arm_perf_pmu_ids id; + const char *name; irqreturn_t (*handle_irq)(int irq_num, void *dev); void (*enable)(struct hw_perf_event *evt, int idx); void (*disable)(struct hw_perf_event *evt, int idx); @@ -1225,6 +1216,7 @@ armv6mpcore_pmu_disable_event(struct hw_perf_event *hwc, static const struct arm_pmu armv6pmu = { .id = ARM_PERF_PMU_ID_V6, + .name = "v6", .handle_irq = armv6pmu_handle_irq, .enable = armv6pmu_enable_event, .disable = armv6pmu_disable_event, @@ -1254,6 +1246,7 @@ const struct arm_pmu *__init armv6pmu_init(void) */ static const struct arm_pmu armv6mpcore_pmu = { .id = ARM_PERF_PMU_ID_V6MP, + .name = "v6mpcore", .handle_irq = armv6pmu_handle_irq, .enable = armv6pmu_enable_event, .disable = armv6mpcore_pmu_disable_event, @@ -2149,6 +2142,7 @@ static u32 __init armv7_reset_read_pmnc(void) const struct arm_pmu *__init armv7_a8_pmu_init(void) { armv7pmu.id = ARM_PERF_PMU_ID_CA8; + armv7pmu.name = "ARMv7 Cortex-A8"; armv7pmu.cache_map = &armv7_a8_perf_cache_map; armv7pmu.event_map = &armv7_a8_perf_map; armv7pmu.num_events = armv7_reset_read_pmnc(); @@ -2158,6 +2152,7 @@ const struct arm_pmu *__init armv7_a8_pmu_init(void) const struct arm_pmu *__init armv7_a9_pmu_init(void) { armv7pmu.id = ARM_PERF_PMU_ID_CA9; + armv7pmu.name = "ARMv7 Cortex-A9"; armv7pmu.cache_map = &armv7_a9_perf_cache_map; armv7pmu.event_map = &armv7_a9_perf_map; armv7pmu.num_events = armv7_reset_read_pmnc(); @@ -2578,6 +2573,7 @@ xscale1pmu_write_counter(int counter, u32 val) static const struct arm_pmu xscale1pmu = { .id = ARM_PERF_PMU_ID_XSCALE1, + .name = "xscale1", .handle_irq = xscale1pmu_handle_irq, .enable = xscale1pmu_enable_event, .disable = xscale1pmu_disable_event, @@ -2939,6 +2935,7 @@ xscale2pmu_write_counter(int counter, u32 val) static const struct arm_pmu xscale2pmu = { .id = ARM_PERF_PMU_ID_XSCALE2, + .name = "xscale2", .handle_irq = xscale2pmu_handle_irq, .enable = xscale2pmu_enable_event, .disable = xscale2pmu_disable_event, @@ -2999,7 +2996,7 @@ init_hw_perf_events(void) if (armpmu) { pr_info("enabled with %s PMU driver, %d counters available\n", - arm_pmu_names[armpmu->id], armpmu->num_events); + armpmu->name, armpmu->num_events); } else { pr_info("no hardware support available\n"); } |